What is CVE-2025-23041?

CVE-2025-23041 is a medium-severity vulnerability in Umbraco Forms, classified under Improper Input Validation. CVSS score: 5.8/10. Published 2025-01-14.

How severe is CVE-2025-23041?

Medium severity. CVSS v3 base score is 5.8 out of 10.

Is CVE-2025-23041 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Improper input validation in Umbraco Forms

CVE-2025-23041

Umbraco.Forms is a web form framework written for the nuget ecosystem. Character limits configured by editors for short and long answer fields are validated only client-side, not server-side. This issue has been patched in versions 8.13.16, 10.5.7, 13.2.2, and 14.1.2. Users are advised to upgrade. There are no known workarounds for this issue.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.004 (29.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L.

Affected products

Umbraco Umbraco_forms
Umbraco Umbraco.forms.issues — versions < 8.13.16, >= 10.0.0, < 10.5.7, >= 11.0.0, < 13.2.2

Weakness classification (CWE)

CWE-20 — Improper Input Validation

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

security-advisories@github.com (x_refsource_CONFIRM, Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2025-23041?: CVE-2025-23041 is a medium-severity vulnerability in Umbraco Forms, classified under Improper Input Validation. CVSS score: 5.8/10. Published 2025-01-14.
How severe is CVE-2025-23041?: Medium severity. CVSS v3 base score is 5.8 out of 10.
Is CVE-2025-23041 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.